: PATENTED 


CLEVELAND) OHIO; USA. 


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WARNING 


LL materials for waterproofing concrete or mortar, in powder 
or paste form, consisting essentially of fatty acids combined 
with calcareous bases, unless manufactured under our license, 

are INFRINGEMENTS OF OUR BASIC PATENTS. All such in- 
fringements will be vigorously prosecuted. All makers and users of 
concrete waterproofing materials are cautioned that the sale or use 
of waterproofing material, unless bearing the Medusa trade mark 
or the words “licensed under the Newberry patent No. 851247” 
may render them liable to suit for infringement. 

MEDUSA CONCRETE WATERPROOFING CO. 


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Medusa Waterprcofing Patent Sustained 


In the United States District Court, Northern District of Illinois, 
on February 18, 1914, a decree was entered declaring the Newberry 
patent, No. 851247, to be good and valid, and that the McCormick 
Waterproof Portland Cement Company and 8. T. Sjoberg in- 
fringed said patent and are perpetually enjoined from making or 
selling waterproof cement or carrying on the process described in 
said patent, and that the complainant shall recover the damages 
resulting from said infringement. The United States Court of 
Appeals, Seventh Circuit, rendered a decision on January 4, 1915, 
fully affirming the decision of the United States District Court, 
Northern District of Illinois. A copy of the decree, in pamphlet 
form, will be sent on application. 


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THE MEDUSA CONCRETE WATERPROOFING COMPANY, 
a subsidiary of THE SANDUSKY CEMENT COMPANY, has suits 
pending against the following comranies for infringement of the 
MEDUSA WATERPROOFING PATENT: 


Ceresit Waterproofing Co., Theodore F. Koch & Frank A. 
Mitchell, in the U. S. District Court, Seventh Circuit, North- 
ern District of Illinois, Eastern Division. 

Integral Waterproofing Co. W. J. hemuee, Layer le 
Phelan, ‘et al., in the U. S. District Court, Southern District 
of New York. 


Also against all important past users of McCormick Water- 
proofing. 


Manufacturers of 


The Sandusky Cement Company, Cleveland, Ohio 
Medusa Gray and White Portland Cement (Plain and Waterproofed) 
and Medusa Waterprocfing 


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Medusa Waterproofing 


Made in Both Powder and Paste Forms 


The Original Concrete Waterproofing of the Integral Type 
Manufactured under Basic Patents 
Beware of Imitations! 


The most Concentrated material of its kind 
on the market. Does not affect strength, 
setting or color of cement or concrete. 
Prevents discoloration and efflorescence 


For use in Cement Mortar, Cement Plaster, Stucco, Concrete 
Blecks (facing only), Concrete Pipe, Cement Shingles, Base- 
ment Walls and Floors, Grain Elevators and Storage, Cisterns, 
Silos, Tanks, Reservoirs, Swimming Pools and wherever 
Waterproof Concrete is necessary. EN rere. bol Sesh Ges 


MANUFACTURED FOR 
The Medusa Concrete Waterproofing Company 


Assignees of Patents by 


The Sandusky Cement Company 


Cleveland, Ohio, U. S. A. 


UNDER U. S. PATENTS TO 
Liebold, No. 771,080, September 27, 1904 Liebold, No. 847,015, March 12, 1907 
Liebold, Re-issue, No. 12,470, April 3, 1906 Newberry, No. 851,247, April 23, 1907 
Barrett, No. 898,547, September 15, 1908 


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Medusa Waterproofing 


Made in Both Powder and Paste Forms 


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EKDUSA has been on the market for a number of years and has 
been used in every part of the world under every condition and in 
every character of construction in which portland cement is used. 


The extraordinary success of Medusa Waterproofing has led to a host of 
imitations and infringements. Many compounds on the market contain no 
waterproofing substance whatever, and are absolute frauds. Permanent 
and thorough waterproofing effect can be secured only by the chemical 
combination of fatty acids with alkaline earth bases, and this principle is 
fully covered by our patents. 


Description MEDUSA WATERPROOFING POWDER is a WATER- 

REPELLENT compound of FATTY ACIDS chemically com- 
bined with lime. Owing to its extreme fineness it may easily be mixed 
with cement in the necessary proportions. 


Packages In cotton, paper lined, non-returnable sacks, containing 40 
pounds each. 


Description MEDUSA WATERPROOFING PASTE was perfected to 

meet a growing demand and preference among architects 
and cement users for a waterproofing which can be dissolved in the water 
to be used in mixing mortar or concrete. It is identical with the powder in 
resulting composition and waterproofing effect. The sole difference be- 
tween the two is the greater convenience of mixing which the paste form 
offers, though if the mixing of the powder with the cement is thoroughly 
and carefully done, equally good results can be obtained with either form. 


Packages MEDUSA WATERPROOFING PASTE is shipped in square 


cans, with large friction seal, of 1 gallon (8 lbs.) and 5 gallons 
(40 lbs.) each. . These are packed for shipment in substantial crates of 


6 one-gallon or 2 five-gallon cans each. 


Samples A 14-pound can of MEDUSA WATERPROOFING PASTE or a 


12-ounce package of MEDUSA WATERPROOFING POWDER 
will be sent free on request. On receipt of 50 cents we will forward, charges 


paid, a 3-pound sample of MEDUSA WATERPROOFING POWDER. 


THE SANDUSKY CEMENT COMPANY, CLEVELAND, OHIO 


Directions for Use 
EJ 


Quantity MEDUSA WATERPROOFING POWDER. To render concrete 
or cement work impervious to water use Powder to the amount 
of 2% of the weight of cement (8 pounds to the barrel of cement). 


Method of Mixing If a mechanical mixer is not used, add the powder 
Berend directly to the dry cement and mix by hand until the 
oy ey powder is uniformly distributed throughout the 
cement. Then add the sand in the proper proportion as usual, and again 
mix dry thoroughly. To the dry mixture of cement and sand add the 
crushed stone and mix until a uniform batch has been secured. The above 
procedure differs in no respect from the thorough mixing recommended for 
all concrete, except by the addition of the powder and its dissemination 
throughout the cement. Care should be taken to add the water a little at 
a time in order to avoid flotation and washing about of the fine particles 
of waterproofing. 


Mechanical Mixing Where a concrete mixer is employed the powder should 

be added directly to the cement at the hopper or on the 
loader. The time of mixing should be sufficient to ensure uniformity 
throughout the mass and should not be lessened with a view to increasing 
speed. The water should be added slowly to prevent flotation and washing 
about of the fine particles of waterproofing powder. The amount of water 


should be kept as low as conditions permit, a quaking consistency being 
most desirable. 


Quantity MEDUSA WATERPROOFING PASTE. To render concrete or 
cement work impervious to water use the paste to the amount 
of 2% by weight of the cement (8 pounds to the barrel of cement). 


Amount of Water The amount of water per cubic yard of concrete varies 
Serer eean |  OTeatly with conditions. it theoretically requires only 
about 20 gallons of water to the barrel of cement to make 1:2 mortar or 
1:2:4 concrete. This would be 80 gallons to the cubic yard. In actual prac- 
tice, however, the quantity of water used may be 40 to 60 gallons or even 
more per cubic yard. The amount of Waterproofing added should there- 


fore be in proportion to the cement or aggregates which go to make up the 
finished concrete. 


The contractor who has blindly followed a specification for a given 
quantity of paste to a given quantity of water is apt to be grievously sur- 


prised when he receives a considerably larger bill for waterproofing than 
he had anticipated. 


We therefore advise that the amount of water which a crew is using 
be determined, and the correct amount of waterproofing paste be added to 
the gauging water so that for each barrel of cement used, 1 gallon of paste 
(8 pounds) goes into the concrete. 


MANUFACTURERS OF MEDUSA WATERPROOFING Page three 


Page four 


Method of Mixing MEDUSA WATERPROOFING PASTE is to be dis- 

solved in the water with which concrete or mortar is 

to be mixed. To obtain easy solution, use soft and slightly warm water. 

Hard water tends to precipitate the paste in a curdy form; the addition, 

however, of a slightly increased quantity of the paste will overcome this 

Oeane Cold water, below 60 degrees F., also dissolves the paste with 
ifficulty. 


To save time and labor in dissolving, empty the paste from the can 
into a pail or tub, add an equal volume of water, and stir thoroughly until 
a smooth cream is formed; then add this mixture to the balance of the 
water to be used. 


It is a simple procedure for a man at the mixer to add for each barrel 
of cement one gallon (8 pounds) of waterproofing paste, diluted in a pail 
to at least 2 gallons of water. 


A Word as to the Amount Needed 


Though somewhat less than the quantity recommended may be used 
in many cases with excellent results, it has proved advisable in any struc- 
tural work to have a reasonable factor of safety. 


The need for such a factor of safety will be appreciated when the 
varying conditions affecting concrete work are considered. Specifications 
of proportions to be used in concrete mixtures vary considerably and so 
also do the aggregates selected. 


It has been found that the quantity prescribed, 2% of the weight of 
cement (8 lbs. to the barrel), is the correct amount to be used. A reason- 
able factor of safety is included in this figure and we advise that this speci- 
fication be rigidly maintained. 


Use Medusa Waterproofing Because: 

It causes concrete work to dry off immediately after a rain, avoiding the 
unsightly dark appearance which watersoaked concrete retains for 
hours. 

It makes concrete basement walls, tanks, cisterns, mortar and all concrete 
work postively waterproof and dampproof. 


It prevents the white efflorescence which renders cement work unsightly. 
It aids in preventing the formation of shrinkage cracks. 


Being sealed within the pores of the concrete and not subject to deprecia- 
tion, the waterproofing effect is permanent. This statement can not 
justly be made regarding the ordinary membranes and coatings which 
are higher in first cost and expensive to maintain. 


It adds very little to the cost of the concrete and needs no renewal. 


Medusa Is specified by the most eminent architects and engineers 
——_————. in the United States and Europe. 


THE SANDUSKY CEMENT COMPANY, CLEVELAND, OHIO 


——— 


The Theory of Waterproofing 


To understand what Medusa Waterproofing does it is necessary to 
consider the physical nature of concrete. Being composed of irregularly 
shaped particles, it is impossible for the mass to be more than compara- 
tively dense. Ordinary concrete, though possessing many points of excel- 
lence such as strength, resistance to wear and permanence, usually contains 
over 20% of voids, and it must accordingly be classed as a porous material. 
By the use of hydrated lime the pores may be to some extent filled, sufficient 
plasticity being acquired by this addition to give slightly greater density 
to the mass. Hydrated lime, however, cannot be classed as a waterproofing 
material since it absorbs water readily. 


The force against which we have to contend, in order to reduce water 
absorption of concrete, is the capillary attraction exerted by these minute 
pores or tubes. This may be demonstrated by observing the action of a 
sheet of blotting paper of which one corner is dipped in water. The water 
will be drawn up in the sheet despite the force of gravity. The force used 
to overcome this absorptive tendency is the force of surface tension. 


In order to waterproof concrete successfully, the ideal material is a 
finely divided, strongly water-repellent compound or a liquid paste which 
upon contact with the alkaline earth bases present in cement, forms a 
strongly water-repellent compound. It must possess the characteristic of 
forming a thin film, capable when properly supported, of holding back by 
surface tension and its own cohesion, the layer of water to which it is 
exposed. Such a material must be cheap and efficient enough to do the 
work when added to the cement in sufficiently small quantity not to affect 
the strength. It must be proof against oxidation and such chemical action 
as may be met with from the concrete or atmosphere. And last but not 
least, it must demonstrate in actual work that the concrete in which it is 
used is waterproof, even after a reasonably long period of time. Medusa 
Waterproofing fulfills these requirements and has proved thoroughly satis- 
factory on thousands of important pieces of construction. 


The function of Medusa Waterproofing in concrete is shown by the 
following simple experiment: | 

Place a handful of the finely ground powder in a pile on the surface of 
water in a tumbler. Press one finger through the center of the pile down 
into the glass. A very thin film of the powder will completely surround the 
finger, as may be seen by looking through the transparent walls of the 
glass. The finger will remain perfectly dry. 


In waterproofed concrete this film is of very minute thickness. The 
particles of cement, sand and stone fit together more or less closely, their 
weight being sufficient to force the waterproofing from between those of 
their surfaces which are in actual contact. The result is that a thin film is 
formed, bridging the pores. Upon being exposed to water-pressure this 
stretches and assumes the shape of the depression, forming a waterproof 


MANUFACTURERS OF MEDUSA WATERPROOFING Page five 


Page six 


film which prevents or reduces to a minimum the penetration of water and 
its absorption by the concrete. 


Example of a test made on water absorption of blocks 114” x 3” x 3” 
of 1:2:4 concrete, wet mixture, laid flat in water, half immersed, with and 
without Medusa Waterproofing. Percentage of water used in making up 
samples was the same in each case. 


This test was made with the idea of simulating the actual conditions 
of a concrete basement exposed to heavy rains. 


Percentage Increase in Weight of Test Pieces 
Water Absorption 


Time 
hi 2 hrs 4 hrs. 24 hrs. 
Nor Wiaterproonne ys. wen ee 5.8 6.4 a 8.0 
1% Medusa Waterproofing ........ euaie cle tes Le ARS) 
2% Medusa Waterproofing .......... 0.9 1.0 1.0 LZ 


Shrinkage Cracks 


Concrete, though probably the easiest and cheapest permanent struc- 
tural material to place, is also the most abused. The most inexpensive, 
crude and untrained labor is employed, cement is often skimped, too much 
water is generally added, mixing is seldom completely uniform and speed 
instead of quality is made the goal to be attained. 


One of the resulting defects in concrete which is due to imperfect con- 
struction is the Shrinkage Crack. These are usually a result of too rapid 
drying out of the concrete before the cement has had time to acquire its 
full strength. They ordinarily appear within the first week, as fine irregu- 
lar hair lines, and by dashing a pail of water over recently constructed 
concrete, they may, if present, be quite easily seen. At first the cracks 
are very small and are mainly confined to the surface, where the shrinkage, 
due to evaporation, is greatest. They are most prevalent on the surface of 
thin layers of concrete such as stucco, etc. By careful construction shrink- 
age cracks may be minimized or entirely eliminated. Certain precautions 
which will be found of value in their prevention are as follows: 


The base beneath the new concrete, stucco, or cement work, whether 
of cinders, clay, sand, brick, tile, etc., should be thoroughly soaked with 
water to prevent leaching out of moisture from the setting concrete. The 
finished concrete should be kept moist, steps being taken to prevent its 
drying out during the curing period even for a minute. It should be cov- 
ered with a wet canvas, kept soaked with water for a period of a week or 
ten days. 

Observance of these simple rules will greatly improve the strength of 
concrete, will prevent dusting floors and will guard against the possibility 
of leaky concrete walls, etc. 


THE SANDUSKY CEMENT COMPANY, CLEVELAND, OHIO 


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Nela Park Reinforced Concrete Reservoir, Cleveland, Ohio 


120 feet in diameter, 11 ft. deep, 1,000,000 gallons capacity. Medusa Waterproofing used to prevent leakage. 
The Austin Company, Cleveland, Builders Wallis & Goodwille, New York City, Architects 


Reinforced Concrete Reservoir, New Ulm, Minnesota 


Made watertight by the use of Medusa Waterproofing 
F. D. Minium, City Engineer Circular Concrete Co., Minneapolis, Contractors 


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MANUFACTURERS OF MEDUSA WATERPROOFING Page seven 
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Y. M. C. A. Swimming Pools and Buildings 
Basements Made Damp-proof and Pools Watertight with Medusa 


Medusa Waterproofing is being specified and used by eminent architects and con- 
tractors in the construction of Y. M. C. A. buildings, for making concrete basement 
walls and floors damp-proof, and also for waterproofing the swimming pools, among 
which are those located at New London, Conn.; Central Falls, R. I.; Erie, Pa.; Wheel- 
ing, W. Va.; Staunton and Norfolk, Va.; Elyria, Ohio; Paris, Ky.; Atlanta, Ga.; 
Moline, Ill.; Eau Claire and Superior, Wis., and Kellogg, Idaho. 

The Y. M. C. A. swimming pool, Wheeling, W. Va., is 20 feet by 40 feet, graded 
in depth from 5 to 7 feet, and the entire pool is lined with white tile and waterproofed 
with Medusa. Giesey & Faris were the architects. 

Medusa Waterproofing was used for swimming pool of Y. M. C. A. building, 
Elyria, Ohio. Pool is 20 feet by 60 feet, and is lined with tile embedded in water- 
proofed cement. Medusa Waterproofing was also used for exterior walls below grade 
line to prevent dampness in the basement, the waterproofed cement plaster being applied 
one-ha'f inch thick. Paul A. Rissmann was the architect, and The John Kaiser & 
Bro. Co., the contractors, both of Elyria. 


Naval Y. M. C. A. Swimming Pool, Norfolk, Va. 


In 1909 Medusa Waterproofing was used in the basement and swimming pool of 
Naval Y. M. C. A. building, Norfolk, Va. The basement is 6 feet below tide-water, 
and during these eight years has successfully withstood the high tides which are quite 
frequent in Norfolk. The work was examined a short time ago and we received a 
report that “it is absolutely waterproof and the results obtained in this building would 
certainly justify the use of Medusa Waterproofing for any work which is to withstand 
water pressure.” Louis E. Jallade, New York City, was the architect. 


Page eight THE SANDUSKY CEMENT COMPANY, CLEVELAND, OHIO 


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Another Swimming Pool Made Watertight With Medusa 


Y. W.C. A. Pool, Hartford, Conn. 


60x23 ft., depth 4 to 6 ft. Tile faced pool, sidewalls and spillways. Medusa Waterproof Paste used 
throughout in mass concrete—one gallon (8 lbs.) to the barrel of cement. 
Louis Jallade, Architect H. Wales Lime Co., Contractors 
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Absolutely Watertight After Five Years. Waterproofed with Medusa 


City Park Municipal Bathing Pool, Toledo, Ohio 


Similar Pools in Navarre and Riverside Parks. Medusa Waterproofing used in walk and floors 
eight years ago and no leaks have developed. 


F. E. Wirebaugh, Engr. for Board of Park Commrs. Schillinger Bros. Co., Contractors 


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MANUFACTURERS OF MEDUSA WATERPROOFING Page nine 


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Fort Garry Hotel, Winnipeg, Manitoba, Canada 


30,000 Pounds Medusa Waterproofing Powder Used 


This hotel is of French architecture, fourteen stories high, absolutely 
fireproof, the steel work non-expansive, partitions of terra cotta, floors of 
marble, tile or cement, and stairways of metal. Indiana buff limestone 
extends from the base of Canadian gray granite to the copper roofing. 


The floor of the rotunda is of marble inlaid with Belgian block, and the 
walls are finished in artificial Caen stone, which was also used on all wall 
surfaces of the palm room, cafe, main dining room and mezzanine floor 
to harmonize the entire ground floor. 


Erected and completed under the direction of the architects for the 
Grand Trunk Railway System, Ross & Macdonald, Montreal; general con- 
tractor, the George A. Fuller Company. 


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THE SANDUSKY CEMENT COMPANY, CLEVELAND, OHIO 


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Stops Basement Leaks 


In the construction of this building, a treacherous stratum of water 
sand was encountered in the sub-basement excavation twenty-eight feet 
below the sidewalk level. Water-tightness in the concrete foundation walls 
was finally accomplished through the use of Medusa Waterproofing to the 
amount of 2% of the weight of cement used. 


ecngave stones 


Pope-Whittemore Building, Cleveland, Ohio 
IIlenry Bacon, Architect Tidewater Bldg. Co., Contractors, New York 


MANUFACTURERS OF MEDUSA WATERPROOFING Page eleven 


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Apartment House, Washington, D. C. 


Medusa Waterproofing used below ground level 


Jos. J. Moebs, Consulting and Constructing Engineer, of Washington, 
D. C., the owner, architect and puilder of this apartment house says pee f 
take pleasure in assuring you that Medusa Waterproofing was used with 
excellent results, waterproofing walls below the ground level and elevator 


pent house.” 
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Page twelve THE SANDUSKY CEMENT COMPANY, CLEVELAND, OHIO 
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National Bank of West Virginia 


Medusa Has Withstood Floods for Years 

Wheeling, W. Va., April 17, 1918. 

“Relative to National Bank of W. Va., I beg to udvise that your Medusa Waterproofing was used 

in basement walls and floors for making them impervious to water, as the building is in the flood 

district and will probably be subjected to flood pressure at least once a year. I have every reason to 

believe that it will be satisfactory, as I employed the same method and used Medusa Waterproofing 

in the basement of an eight-story reinforced concrete warehouse for W. A. Wilson & Sons in this 

city, which has successfully withstood floods for three years, and in the basement of the twelve-story 
Windsor Hotel, this city.’’ 

CHARLES W. BATES, Architect and Structural Engineer. 


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MANUFACTURERS OF MEDUSA WATERPROOFING Page thirteen 
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Medusa Waterproofing Will Prevent the Corrosion of Steel in Concrete 


The following appeared under the caption of “Corrosion of Steel in Concrete” 
in Rock Products and Building Materials 


“Speaking on this subject some time ago, Dr. W. H. Walker, director of the 
research laboratory of applied chemistry of the Massachusetts Institute of Technology, 
said that every engineer is well aware of the fact that acidulated water, no matter how 
small the percentage of acid may be, tends to corrode steel by increasing the number 
of hydrogen ions present. It had been made clear, from tests he carried out, that 
there were certain alkaline substances present in concrete which corrected any acidity, 
and so protected the contained metal work from corrosion. 

“This fact has an important bearing upon the question whether concrete will pro- 
tect iron or steel from corrosion. Inasmuch as portland cement, when it sets or 
hardens, liberates a quantity of caustic lime, which is a strong alkali, the answer to the 
question must be in the affirmative. Iron or steel will not corrode when embedded in 
good concrete. But caustic lime is soluble in water, and poorly made concrete is not 
impervious to moisture. Therefore, if iron be embedded in concrete through which 
water is allowed at any time to percolate, this calcium hydrate will be slowly but surely 
dissolved. With it will disappear the inhibiting action of the concrete; and iron em- 
bedded therein will, in time, rust and become corroded. To ensure absolute protection 
of the reinforcing members of concrete construction, therefore, such concrete must be 
of good quality and sufficiently dense and carefully made to render it waterproof.” 


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Medusa Waterproofing Used to Preserve Metal Reinforcement 


The Dilworth Public School Building is one of the largest in the district. 
1,500 pounds of Medusa Waterproofing were used by the contractors 
and builders who advise as follows: 


The Sandusky Cement Co., Pittsburgh, Pa., April 20, 1918. 
Cleveland, Ohio, 
Gentlemen: 
We built the Dilworth School and used considerable Medusa Waterproofing in roof 
fill to keep the moisture from the metal reinforcement. We used the material in ac- 
cordance with your directions and found the same very satisfactory. This building cost 


about $230,000. Yours very truly, 
DAWSON CONSTRUCTION COMPANY, 
L. V. Dawson, President. 


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Page fourteen THE SANDUSKY CEMENT COMPANY, CLEVELAND, OHIO 


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Mt. Sinai, the New Jewish Hospital, Cleveland, Ohio 
A Well Appointed Hospital In a Beautiful Location 


George B. Post & Sons, Architects Reaugh Construction Co., Contractors 


The new Jewish Hospital, located facing Wade Park on East 105th Street, 
Cleveland, Ohio, for which Geo. B. Post & Sons, New York, were the 
architects, was built at a cost of $410,000. The architectural style adopted 
is that of the English Renaissance of the Georgian period. A wire-cut 
brick of general grayish pink, with unusually great variations of color, 
was selected, and was laid with a wide joint in old English bond, with 
black headers. A base of granite is surmounted by a ground floor treat- 
ment in Indiana limestone, above which are walls of brick trimmed with 
limestone on the first story of the main building, and terra cotta matching 
the limestone above this, and including the cornice and the trims of the 
other buildings. 


In modern hospital buildings dry basement walls and floors are a fea- 
ture, and in the construction of “Mt. Sinai” the Reaugh Construction Co., 
Cleveland, general contractors, used Medusa Waterproofing for this purpose. 


eS ———————————————————_————————————__——__——_—_—____ IIIT 


MANUFACTURERS OF MEDUSA WATERPROOFING Page fifteen 


United States Government Structures 


With the adoption of Medusa Waterproofing by the U. S. Government, this 
material has an enviable reputation, and architects, engineers and contractors should 
have no hesitancy in specifying and using it. Morris E. Payne, Engineer (American 
Forces Overseas), says: 


“TI am very glad to testify as to the quality of Medusa Waterproofing. I have had occasion to use 
quite a lot of your material and have found it to be equal to its manufacturer’s guarantee. 


“While in the employ of the Goverment I used large quantities in connection with the erection of a 
great many artillery fire-control structures, such as fire-control observing stations, signal corps switch- 
board rooms, power plant for searchlights, searchlight shelters and battle commanders’ stations. Most 
of these buildings were constructed of expanded metal on light steel frames, the expanded metal being 
plastered with cement, waterproofed with Medusa Waterproofing, on both sides. The buildings are concealed 
by earthwork to some extent, but at the same time are subjected to severe storms. I do not know of a 
single instance where any trouble was encountered after using your product.”’ 


Signal Corps Switchboard Room 
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Medusa also proved successful in the following Government work, much of which 
has been subjected for a number of years to severe tests by the rise and fall of tide, 
ice floes, sun exposure or action of salt water: 


Sept., 1918. American University Experimental Station, Washington, D. C. 


Sept., 1918. 2000 pounds powder, 4000 pounds paste, U. S. A. Telephone & Telegraph Building for 
War and Naval Dept., at 1723 Front St., N. W., Washington, D. C., and three others. 


June, 1918. 16,750 pounds powder used by the constructing quartermaster at Camp Wadsworth, 
Spartansburg, S. C. 


June, 1918. 3984 pounds paste used by the Supply officer of Naval Yard on Lower Proving Ground, 
Indian Head, Maryland. 


Oct., 1918. 2000 pounds powder used by the U. S. Constructing Quartermaster at Brunswick, Ga. 
Nov., 1918. 2000 pounds powder used by U. S. Supply Officer at Portsmouth, Va., Naval Yard. 
Nov., 1918. 100 pounds powder Quartermaster Culver Military Academy, Culver, Ind. 

Sept., 1919. 3400 pounds powder Commanding Officer, Rock Island Arsenal, Rock Island, Ill. 
Newport Concrete Float, government landing at Torpedo Station. 

Charleston, South Carolina, Navy Yard for general purposes. 

South Boston, Quartermaster Terminal. 

New London Concrete Experimental Tank. 

Compressed Air Stations, 2nd Army District, Hog Island. 

Frankford Arsenal, general purposes. 

Navy Yards, Washington, D. C. 

Navy Yards, Philadelphia, Pa. 

Navy Yards, Norfolk, Va. 

Also Fisher’s Island, N. Y., Fort Wright. 

Swimming Pool, Ft. Lee, Va. 


Page sixteen THE SANDUSKY CEM VT COMPANY, CLEVELAND, OHIO 


ee oe a ee ee ee ee ee 


Yllldiitiires 


| <es 


Immense Concrete Reservoir in England 
Made Permanently Watertight in 1912 with Medusa Waterproofing 


This big concrete job was commenced in May, 1910, and completed in 
June, 1912. The average dimensions of the reservoir are: Length 182 
feet; width 165 feet; depth of water 1314 feet; thickness of walls about 
4 feet; thickness of floor about 12 inches; thickness of roof 6 inches. The 
roof is carried by reinforced beams supported by reinforced concrete pillars 
12 inches square. 


This massive reservoir is entirely of concrete, has a capacity of 
2,500,000 gallons, and is used for the purpose of supplying water to a dis- 
trict of the Borough. It is built on a high elevation, and was designed and 
constructed by direct labor in the Borough and Water Engineers’ Depart- 
ment. The whole of the interior walls and floor are finished with a one-inch 
coat of portland cement plaster containing 2% Medusa Waterproofing. 


The work was completed eight years ago, and Arthur Race, Borough 
Engineer, says the results obtained with Medusa Waterproofing are very 
satisfactory. 

—— fs) —_—— 
Medusa Waterproofing Used Extensively in England 


Medusa has been used by the Admiralty, War Office, Horseguard’s 
Office of Works, Indian Office, Woolwich Arsenal, Record Office for Bank 
of England, New Zealand and Queensland Governments. Also for King’s 
House at Jamaica; Royal Naval College, Greenwich; H. M. Dockyard, Ports- 
mouth; General Post Office, London; and by hundreds of architects, engi- 
neers, general contractors, builders and decorators throughout all of Eng- 
land, the British Isles and the British Colonies. | 


MANUFACTURERS OF MEDUSA WATERPROOFING Page seventeen 


fo 
Wit 


Ql 


Pumping Station Under Heavy Water Pressure for Nine Years 
Made Permanently Dry with Medusa Waterproofing 


The pumping station of the East St. Louis outlet sewer was completed 
during the year 1911, and the contractors on the work used Medusa Water- 
proofing, which has given complete satisfaction. 


The foundations for this pumping station are 125’x25’. Height from 
lowest elevation to top of foundation 26’, walls are 36” thick at bottom, 20” 
at top, floors about 7’ thick. It was necessary to have floors this heavy on 
account of 36” suction pipe for pumps being embedded in them. The sides 
of this foundation are reinforced by a sheet steel shell. The bottom does 
not contain any reinforcing material. 


The foundation supports the weight of five 290 H. P. engines directly 
connected to 48” centrifugal pumps, two 190 H. P. engines directly con- 
nected to 36” centrifugal pumps, and all appurtenances, the total weight 
exceeding 200 tons. 


During the nine years that this station has been in operation there has been no 
leakage through the floors or walls of this foundation, although the Mississippi River 
has, at times, been fifteen feet higher than the lowest elevation. 


Oscar Stankey, Engineer in Charge, says: ‘I consider this a supreme test of 
the efficiency of your Medusa Waterproofing, and cheerfully bear witness to the 
satisfactory results obtained by the use of it in this pumping station.” 


Page eighteen THE SANDUSKY CEMENT COMPANY, CLEVELAND, OHIO 


—$—$—<$<$<————————————————————————————————————— 


tl 
Li 


“More Than Satisfactory and Most Economical Waterproofing” 


Noted Engineer Lauds Medusa and Guarantees Waterproof Work 


The plant of the Combined Locks Paper Co., Combined Locks, Wiscon- 
sin, manufacturers of printing paper, is 290 ft. long by 171 ft. wide, and 
two stories high. Part of the main floor is used for storage and contains 
approximately 3,000 tons of paper. 

Worden-Allen Company, Chicago, Illinois, were the general contractors, 
who with J. B. Purves, Mechanical Engineer of the Combined Locks Paper 
Co., did the designing. The statement of Harry Lafayette, Construction 
Engineer, Worden-Allen Company, is of interest to engineers and archi- 
tects: 

“I consider this one of the greatest engineering feats attempted in 
recent years. * * * JI used Medusa Waterproofing for floors, machine 
pits, scale pits, elevator pits and in some instances in connecting new work 
to the old, and in all cases your material was more than satisfactory and 
the results were excellent. 

“It is not necessary for me to make any statements about this work 
as it shows for itself just what it is. I will further state that I have been 
a user of compounds for concrete for a number of years and I can prove by 
my past work that Medusa is the first, last and always the most economical 
of all. 

“T will be willing at any time to furnish information to anyone needing 
it, or will take over any waterproofing problems and guarantee the results.” 


MANUFACTURERS OF MEDUSA WATERPROOFING Page nineteen 


SNe eee nnn 


gees 
MMi 
Winner wasnt 


Herman J. Esser, Architect 


Medusa Waterproofing made this reservoir absolutely watertight, showing no 
leakage or seepage. Architect, engineer and owner praise Medusa for excellent 


results secured. 
| 


Concrete Tank, Plankington Packing Co., Milwaukee, Wisconsin 


H. Schmitt & Son, General Contractors and Builders 


In perfect condition and watertight after five years of service. The general con- 
tractors say: “We will use Medusa Waterproofing any time a waterproof job is 


required.” 


Page twenty THE SANDUSKY CEMENT COMPANY, CLEVELAND, OHIO 


iy” 


ells = 


30,000 Ibs. Medusa Waterproofing Used to Dampproof this Structure 


Harbor Commissioners’ Grain Elevator No. 2, Montreal, Quebec 


This is one of the largest reinforced concrete grain elevators in the world. The 
entire structure, including first story bins is of concrete. Even in the cupola, the 
columns, beams, floors and roof are of this material, making it absolutely fireproof, 
and 30,000 lbs. of Medusa Waterproofing were used to make the work impervious 
to water and dampness. John S. Metcalf Co., Limited, were the construction engineers. 


eS 


Corn and Oats Conserved by Eliminating Dampness 
Grain Storage is Perfectly Dry 


The Sandusky Cement Co., Dunkirk, Indiana, August 31, 1918. 

Cleveland, Ohio. 

Gentlemen: 

We used Medusa Waterproofing in the basement of our grain elevators, and our 
corn and oats bins extend to the very bottom of the basement. 

For the past two years we have stored oats at harvest time, which remained in 
the bins until the following spring. Not a single oat was spoiled. 

In the corn bins and cribs, where the corn is on the cement bottom in which 
Medusa Waterproofing was used, we never lose an ear of corn. 

Would like to send you a photo, but the place where we used the waterproofing 
so satisfactorily is 9 feet under one driveway in our grain elevator, and the basement 
of our corn cribs is just at the side of the dumps. The only way we could get a pic- 
ture would be by using a flash light, and with $40.000 worth of wheat stored above we 
do not care to take the risk, much as we would like to please you. 

Medusa Waterproofing deserves great credit, for it certainly is giving perfect 
satisfaction. We know of nothing superior. Yours respectfully, 

W. L. SKINNER GRAIN CO. 


MANUFACTURERS OF MEDUSA WATERPROOFING Page twenty-one 


Leite Zz 


Mle = 
a 
$4/ 


Pumping Stations and Disposal Plant, Warren, R. I. 
Medusa Waterproofing 12 Feet Below High Tide 


Gives Damp Proof and Impervious Walls 


West Wall of Disposal Plant 


Providence, R. I., April 28, 1918. 
The Sandusky Cement Co., 
Cleveland, Ohio. 


Gentlemen: 


I have used Medusa Waterproofing in all the reinforced concrete for 
the Disposal Plant and Pumping Stations at Warren, R. I., with very 
satisfactory results. 


The tanks and pumping stations are located near the water’s edge 
and some twelve feet below high tide. The ground is marshy and wet, 
but the walls have proved to be dry and impervious to moisture as the 
result of using your Waterproofing. 


Yours very truly, 
CHARLES F. CHASE, 


Consulting Engineer. 


Page twenty-two THE SANDUSKY CEMENT COMPANY, CLEVELAND, OHIO 


Yitbbiey 


TO 


Medusa Waterproofing Stops Leakage of Thirty Years 


Recommended for Power Dams, Reservoirs, Lake and River Work 


Gisholt Machine Company’s Plant, Madison, Wisconsin 


Medusa Waterproofing has the distinction of having the endorsement 
of many nationally prominent engineers and contractors, among them the 
Worden-Allen Company, Chicago, Illinos. They were the contractors for 
plants of the French Battery & Carbon Company and Gisholt Machine 
Company, Madison, Wisconsin. 

Medusa Waterproofing was used with great satisfaction for all toilets 
in the former, and for floors and tunnel under the street and in other places 
subject to dampness, in the latter. 

Engineers particularly will be interested in the following from Harry 
Lafayette, Construction Engineer, Worden-Allen Company and Lackawanna 
Bridge Company, Chicago: : 

“T have been a constant user of Medusa Waterproofing for a period of 
ten years, and it has always given absolute satisfaction. 

“Medusa Waterproofing, to my mind, is superior to anything on the 
market for waterproofing purposes. I have, in many cases, stopped leakage 
in elevator and scale pits, tunnels and basements, in some instances where 
they had been leaking for thirty years. 

“We particularly recommend the use of Medusa when applied accord- 
ing to the manufacturer’s directions, especially where high water pressure 
is encountered as in power dams, reservoirs, lake and river work.” 


NN  —————————————————eeee—————— SS See Oe 


MANUFACTURERS OF MEDUSA WATERPROOFING Page twenty-three 
————————————————— 


age twenty-four 


aN 
—— 


jit mame, 
Mr, 


/// 


A Burial Case that Defies all Action of the Elements 
This Casket was in the Ground Several Years 


The Impervious Burial Case & Mold Co., Tiffin, Ohio, patentees and 
manufacturers of adjustable molds for making burial vaults, in justification 
of our claims for Medusa Waterproofing, write as follows: 


“This view shows the disinterment of one of our Impervious burial 
cases, made of Medusa Waterproofed Gray Portland Cement. It was buried 
in a heavy, clay soil in a very wet place in the cemetery. 


“After being in the ground several years, it was disinterred and the 
casket was shipped over 200 miles. Everything was in perfect condition 
and perfectly dry inside. The varnish on the casket was not even dis- 
colored, which the photograph verifies. We consider this a very good test.” 


E] 


400 Burial Vault Manufacturers Use Medusa Waterproofing 


As the rough-box, brick, slate or steel vaults are only temporary in 
duration and do not afford permanent protection to the casket and contents, 
the cement burial vault is constantly increasing in favor, and that of The 
Norwalk Vault Co., Norwalk, Ohio, is the highest ideal in burial recep- 
tacles—absolutely impervious to the effect ee em ee ae 
of the elements and will not decay or dis- 7 ne 
integrate. 

The body and lid are reinforced with ex- 
panded metal, and the portland cement used is 
waterproofed with Medusa. After the lid has 
been placed in position it is sealed with a special ee oe i 
sealing cement, which makes the job a one-piece — sa" 5n titi spre) Carcinaling ea 
vault of solid cement, positively waterproof and durable for generations. 

The Norwalk Vault Co., the parent company, and their 400 subsidiaries in the 
United States and Canada, use Medusa Waterproofing in the manufacture of these 
vaults. 


Sameera ee 


THE SANDUSKY CEMENT COMPANY, CLEVELAND, OHIO 


ty 


Y y eg 


In Perfect Condition After Months in a Wet Grave 


This is Why We Urge You to Use Medusa for Burial Vaults 
Severe Tests Prove Its Waterproofing Efficiency. Preserve Your Dead 


The vault shown here had been buried at Vancouver, B. C., for a num- 
ber of months in a wet grave and when lifted was covered with mud and 
water. On removing the cover, the inside was found to be absolutely dry, 
without the least sign of moisture. Not even the paint was discolored. 
The casket, a cloth covered one, was as bright as the day it was interred. 
On exposing the remains, they were found to be in a perfect state of pres- 
ervation. The vault, casket and remains were shipped to Tacoma, Wasn., 
where they were finally reinterred. 


The Sandusky Cement Co., Detroit, Mich., July 15, 1918. 
Gentlemen: 

In regard to Medusa for waterproofing our burial vaults, beg to say that we have 
used it for the past five years or more and it has given such entire satisfaction that 
we would not take a chance on any other brand of waterproofing. 

We have lifted over seven of our vaults after having been buried from two to 
three years, and in every instance the vault was perfectly dry and the remains and 
casket in perfect condition. 

To prove to you that this is the truth I enclose a circular illustrating a lifting, in 
which the vault was in the ground over two years—in wet ground, too. As you will see 
by the cut, the casket was as bright as the day it was interred. Vault was perfectly 
dry. Remains were as perfect as the day buried, and they were shipped to Tacoma, 
where another funeral was held. 

We had another case equally as remarkable. This vault was buried three years. 
Lifted in mud. Vault perfectly dry, and remains shipped to Toronto, where a large 
funeral was held. 

We have tested out more than a dozen kinds of waterproofing, of the best Ameri- 
can and English makes, but there is none that wiil compare with-Medusa. We know 
from actual experience—no guess work. You can bank your last dollar on Medusa for 
waterproofing purposes. Yours very truly, 

THE NATIONAL VAULT CO., Eugene R. Chandler. 


MANUFACTURERS OF MEDUSA WATERPROOFING Page twenty-five 


Concrete Block Manufacturers Should Use 
Medusa Waterproofing 


Se 
WATERPROOFING 
From a paper by Robt. F. Havlik, M. E. 


In speaking of waterproofing, I tread on dangerous ground. Regardless of what 
can be said of monolithic concrete, I am of the firm belief that concrete building 
products such as block and trim should all be waterproof, so they will absorb little or 
no water. It has been contended frequently that they can be made waterproof without 
the use of a waterproofing. I have had considerable experience along this line, but 
have failed to make a waterproof block without the use of a waterproofing, regardless 
of how wet I made the facing. I contend that concrete building products should dry 
in a few hours after a severe rain, and no product made without a waterproofing 
will do this. 


I know that block can be made waterproof, without waterproofing, to such an 
extent that moisture would not affect the interior of the building, but that is not 
sufficient, for such blocks retain moisture in the face entirely too long. I personally 
would not live in a house made of concrete block which retained moisture in the face 
for two days or more after a severe rain. It is this very feature that creates the 
general impression that concrete products are not waterproof, and for that reason 
alone, if for no other, a reliable waterproofing should be used to prevent it. 


The great majority of waterproofings now on the market are unreliable, but there 
are a few that are very good. Much of the adverse criticism of waterproofings is due 
to laboratory tests made on small specimens, perhaps 2” cubes. Such tests are unre- 
liable, as I know from personal experience. I believe that with any waterproofing a 
sufficient amount of water must be used to show a little moisture on the surface of the 
product when made, or else it will not be waterproof. Another precaution that must 
be taken is to tamp the concrete very thoroughly. It is impossible to do this in small 
laboratory specimens, and that is why they seldom prove favorable to the waterproofing. 


0} 


Amusement Hall and General Store, Bay Bridge, O. 
Solid Concrete Blocks Waterproofed with Medusa Waterproofing 


The mix used was a 1 to 
4 cement and crushed lime- 
stone with 2% Medusa 
Waterproofing added to the 
34-inch facing. There had 
been considerable doubt 
about getting a damp-proot 
building by using solid 
blocks, but Medusa Water- 
proofing solved the problem 
very satisfactorily. This 
building has been perfectly 
dry for six years. 


Blocks were laid in a waterproofed cement mortar. 


Page twenty-six 


THE SANDUSKY CEMENT COMPANY, CLEVELAND, OHIO 


YPC", 
7 
Mi: 


Concrete Blocks that are a Credit to the Industry 


Medusa Waterproofing in the Facing is Extremely Effective and Economical 


Home of Mrs. F.. W. Baker, Blanchardville, Wis. 


Always dry and of uniform color 
0) 
Superintendent’s House, Sandusky Cement Co., Bay Bridge, O. 


Concrete Block Resi- 
dence, Bay Bridge, Ohio, 
built by the Sandusky 
Cement Co., for the sup- 
erintendent of their Ohio 
plant. Waterproof and 
dampproof after nearly 
twenty years. 


Medusa Waterproofed 
Cement used in the fac- 
ing of all concrete blocks, 
in the concrete basement 
walls and floors of this 
residence by firm well 
qualified to judge of 
its value. 


Plastering applied di- 
rectly to the surface of 
the blocks in interior, 
without furring or lath- 
ing. 


Medusa Waterproofing in facing of blocks 


MANUFACTURERS OF MEDUSA WATERPROOFING Page twenty-seven 


age twenty-eight 


Cement Products Containing Medusa Waterproofing 
Rain Acts as a Wash Instead of Water-soaking the Surface 


Shoup & Jones, Lincoln, Ill., who manufacture building blocks, porch pier blocks, 
columns, lattice work, lintels and sills, flower vases, birds’ bathing basins, well covers, 
roofing tile, fence posts, water troughs, grave markers, drain tile, and almost anything 
that can be made of concrete, advises as follows:—“We have been using Medusa 
Waterproofing in our work for several years and find it to be all you claim for it. It 
certainly is what its name implies—waterproof.” 


E] —— = 
The Sandusky Cement Co., Oxford, Indiana, Aug. 18, 1918. 


Cleveland, Ohio. 
Gentlemen: 

I have been using Medusa Waterproofing for several years and consider it the 
only method to employ in making concrete burial vaults waterproof. I buried a vault, 
waterproofed with Medusa, and kept ground around it soaked with water for a month, 
after which it was opened and found to be perfectly dry. 

I have also used it in facing concrete blocks, and block buildings erected five years 
ago dry off and blocks are of as uniform a color after a rain today as when built. 


Very truly yours, 
STEEN SWADLEY, 
(Manfr. Concrete Burial Vaults and Cement Products.) 


| 
The Sandusky Cement Co., Fall River, Mass., May 22, 1918. 


Cleveland, Ohio. 
Gentlemen: 
I used Medusa Waterproofing on basement of Birch Building, Fall River, which is 
below level of the river, and obtained excellent results. 
Yours very truly, 
EDWARD M. CORBETT. 
(Civil Engr. and Land Surveyor.) 


THE SANDUSKY CEMENT COMPANY, CLEVELAND, OHIO 


MANUFACTURERS OF MEDUSA WATERPROOFING 


5,000,000 Concrete Blocks Waterproofed with Medusa 


The Sandusky Cement Co., Chicago, Ill., Oct. 30, 1918. 
Cleveland, Ohio. 
Gentlemen: 
We have used Medusa Waterproofing for more than eight years in more than five 
million cement blocks, and the fact that we are still using it surely shows our confi- 


dence and satisfaction. Yours very truly, 
CALUMET CONCRETE CONSTRUCTION CO. 
fi] 
Medusa Adopted for Federal and Public Buildings 
The Sandusky Cement Co., Charlottesville, Va., Oct. 15, 1918. 
Cleveland, Ohio. 
Gentlemen: 


In connection with your Medusa Waterproofing and Medusa White Portland 
Cement, it is almost impossible to say how many buildings we have used them in, but 
practically all we have erected, including post offices, court houses, city halls, hospitals, 
and large commercial buildings. This applies particularly to federal work, of which 
we make a specialty. 

In no single instance have the architects, owners, or ourselves been able to find 
fault with your cement or waterproofing. We consider them in a class by themselves, 
and while there may be others, to our personal knowledge, we know of none that com- 
pares with them. Yours very truly, 

KING LUMBER CO., 
(General Contractors and Builders.) 
—_—— G] —______- 
Standard Oil Company Uses Medusa Waterproofing for Basement 
Successfully Waterproofed Below River Level 
See page thirty. 
The Sandusky Cement Co., Fond du Lac, Wisc., Oct. 22, 1918. 
Cleveland, Ohio. 
Gentlemen: 

In the construction of warehouse for the Standard Oil Co., we had considerable 
difficulty on account of this building being erected near the river bed. We had to con- 
tend with a good deal of water as the floor and walls of the furnace room are 4’ 6” 
lower than the river level. By using Medusa Waterproofed Cement we have been able 
to give these people a first-class waterproof job. 

We have used this material in the past four years for cisterns, etc., and to our 
knowledge have found it to be as good a waterproofing as there is on the market. 


Yours very truly, 
THE HUTTER CONSTRUCTION CO. 
ee ee 
Contractors Had to Guarantee Watertight Swimming Pools 
Used Medusa Waterproofing for Positive Results 
The Sandusky Cement Co., Galesburg, Illinois, March 15, 1918. 
Cleveland, Ohio. 
Gentlemen: 

In reference to waterproofing used in the High School Gymnasium, this city, will 
say that the architect did not specify Medusa Waterproofing, but since we had to guar- 
antee the work, we took the liberty of using it as we knew, absolutely, that this 
material would be good. Medusa Waterproofing was used as per the manufacturer’s 
specifications, integrally with the concrete, in both of the swimming pools, and the result 
is very satisfactory. Yours very truly, 

MONMOUTH-GALESBURG CONSTRUCTION CO. 


Page twenty-nine 


What Medusa Waterproofing Will Do in Basement Work at Low Cost 
Grocery and Meat Departments Perfectly Dry Below Lake and Sewer Level 


The Sandusky Cement Co., Wausau, Wis., April 16, 1918. 

Cleveland, Ohio. ; 

Gentlemen: 

The Treleven Building, Fon du Lac, Wisconsin, is a large reinforced concrete 
department store building, the basement of which is being used for the grocery and 
meat departments. For this building we specified waterproofing composed of felts and 
waterproofing cement. However, we were unable to do this as we could not excavate 
beyond the street line and consequently could not apply same. We therefore began 
looking for a waterproofing compound which we could mix with the cement and which 
might give satisfactory results. 

I wish to state that the results obtained have been satisfactory beyond my expec- 
tation. Our basement floor is below the level of Lake Winnebago and also below the 
sewer line and the soil is a clay constantly saturated with water below this lake level. 
We used Medusa Waterproofed Cement in walls and basement floor. 


We had very severe continuous rains during the summer and the water stood 
against walls to top of grade for about three weeks, which was a good test, and we can 
strike a match on any portion of inside basement walls as no moisture comes through 
them. The owner and contractor are very much pleased with the results obtained, 
especially so since it was the general opinion in Fon du Lac that you could not get a 
dry basement in the city by going below the lake level. No doubt there will now be a 
great many more basements used for commercial purposes in Fond du Lac. 


On account of the results obtained in this building, I specified your Medusa 
Waterproofed Cement on the large wholesale grocery warehouse for Mr. C. E. Blodgett, 
Marshfield, Wisconsin. The owner informed me that he wanted an absolutely dry base- 
ment and I did not. hesitate in specifying your material's. Another point which pleases 
us very much is that the expense in waterproofing with your Medusa Waterproofed 
Cement is very nominal. 

Assuring you that the results obtained with your materials have been beyond my 
expectations, I beg to remain, Yours very truly, 

H. T. LIEBERT, Architect. 
The Hutter Construction Company, Fond du Lac, were the general contractors for this work, 


and they, too, are very enthusiastic over the success they have had with Medusa Waterproofing. 
See their letter on page 29, 


Page thirty . THE SANDUSKY CEMENT COMPANY, CLEVELAND, OHIO 


A J yl! me Yi yy y - iy. : yyy 
enna Wi, Y J op White y Wig ii Vi siti 
ee Wi) Wi; o ll till 


72 


Residence of John E. Reid, Wheeling, West Virginia 


Fxterior Finish of Medusa Waterproofing and Medusa White Cement 
C. W. Bates, Architect ‘Gy Wm. C. Baughman, Contractor 


FF. T. Blake Residence, Worcester; Massachusetts 
; Medusa Waterproofed White Portland Cement Exterior on Hollow Tile 
L. W. Briggs Co., Architects Faucher Bros. & Co., Plastering Contractors 


MANUFACTURERS OF MEDUSA WATERPROOFING Page thirty-one 


Water from Springs was Stopped With Medusa 


A Testimonial From an Authority on the Testing of Cement, Concrete 
and Other Structural Materials 


Pittsburgh Testing Laboratory Building, Pittsburgh, Pa. 


O. M. Tropp, Architect James L. Stuart, Constructing Engineer 


This is what A. R. Ellis, Assistant General Manager, Pittsburgh 
Testing Laboratory, Engineers and Chemists, Pittsburgh, has to report 
about their experience with Medusa Waterproofing: 


“It gives us pleasure to say that in the construction of our building, 
Medusa Waterproofing was used in the basement, and effectually stopped 
several springs, which otherwise might have kept our basement damp.” 


age thirty-two THE SANDUSKY CEMENT COMPANY, CLEVELAND, OHIO 


MANUFACTURERS OF MEDUSA WATERPROOFING 


Ve 
ee 


One of World’s Largest Union Passenger Stations 
15000 pounds of Medusa Waterproofing used in retaining wall 


Union Station, Kansas City, Missouri 
Jarvis Hunt, Chicago, Architect The George A. Fuller Constr. Co., Contractors 


A perfect architectural creation of Bedford stone and gray granite on 
the exterior, and stone, marble and tile inside, the new Union Station, Kan- 
sas City, Missouri. is exceeded in size only by the great terminals in New 
Yorke City. 

The main building is 150 feet wide and 510 feet long, costing about 
$6,000,000, while the total cost, including land, approaches, new belt line, 
etc., represents over $50,000,000. The train sheds covering the tracks, 30 
feet below the waiting room floor, are 1400 feet long. 

The figures are not startling when the great volume of business is 
realized. 26 trains leave and arrive every day; 28,000 passengers are 
carried in and out of the city daily; 530 tons of mail are handled every 
day; 7,000 pieces of baggage are handled daily. Kansas City handles in 
and out 2,000 cars of freight daily. 

In the construction of the retaining wall south of the plaza in front 
of the station, 15,000 pounds Medusa Waterproofing were used. This wall 
faced up the natural formation of rock where it was possible to use forms 
for the concrete on the outside face only. This rock was stratified and 
more or less water came down through the layers. Medusa Waterproofing 
was used by George A. Fuller Construction Co., Edgar S. Belden, Engineer 
in Charge, and it has kept the water back and proved very satisfactory. 


Page thirty-three 


THE SANDUSKY CEMENT COMPANY, CLEVELAND, OHIO 


Convincing Proof of Permanency of Medusa Waterproofing 
After 15 Years, Results Unchanged 
The Sandusky Cement Co., Ironton, Ohio, August 18, 1905. 
Cleveland, Ohio. 
Gentlemen: 


We used your Medusa Waterproofing to waterproof a 100,000 gallon concrete tank 
and found it to be entirely satisfactory, at least the tank has not leaked a drop since we 


used it in the plaster, with which we plastered the tank. Very truly yours, 
THE IRONTON PORTLAND CEMENT CoO. 
The Sandusky Cement Co., Ironton, Ohio, May 2, 1918. 
Cleveland, Ohio. 
Gentlemen: 


In regard to Medusa Waterproofing used by us in concrete tank several years ago, 
will say that we have had this tank in service now about 13 years, and up to date we 
have never noticed any leaks whatever. We have been very well satisfied with the 
result obtained from the use of your Medusa Waterproofing. 

Very truly yours, 
THE IRONTON PORTLAND CEMENT CO., 


By A. C. Steece, Treas. and Gen. Mer. 


Oe eae! 
Basement Waterproofed with Medusa Used for Flour Storage 
W. L. Macatee & Sons, Houston, Texas, April 23, 1918. 
Houston, Texas. 
Gentlemen: 


Relative to Medusa Waterproofing, you are advised that this company has used a 
great deal of this material with good success. We used it for waterproofing basement 
in the National Biscuit Company’s factory in this city and beg to say that we have 
never had any trouble with this basement, notwithstanding the fact that it is very deep 
and must be maintained absolutely dry, as it is used for the storage of flour. 


Yours very truly, 
THE AMERICAN CONSTRUCTION COMPANY. 


—————— f]}—____—_ 
Medusa Waterproofing Gives Perfect and Permanent Results 
Used Under’ Heavy Water Pressure 


Eleven Years after completion of the sinking and lining with concrete, of a 6-foot well 
80 feet deep in water bearing soil, we received the following: 


The Sandusky Cement Co., East Alton, Ill., April 16, 1918. 
Cleveland, Ohio. 


Gentlemen: 


We note you desire some information regarding the condition of the shot tower 
well which we put in, using Medusa for waterproofing purposes. 

The work is in the same condition as when it was finished and has not given us 
any trouble whatever since the completion. 

We do not see but that the result is practically as perfect as is possible, as there 
is no water passing through the concrete walls which are submerged for a depth of 
something like forty feet. 

Yours truly, 


EQUITABLE POWDER MFG. CO., 
F. W. Olin; President. 


Page thirty-four 


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What Dealers Think of Medusa Waterproofing 


The Sandusky Cement Co., Sycamore, Illinois, July 3, 1918. 
Cleveland, Ohio. 
Gentlemen: 


We have sold and used Medusa Waterproofing personally for a great many years, 
and have always found it satisfactory. We have used this in cellar walls, for relining 
cellar walls and for elevator boots and general foundation work, with great satisfaction 
and it always produced the desired result if used correctly; in fact, we have never found 
anything else that was satisfactory. Yours very truly, 


HOLCOMB BROS. 


The Sandusky Cement Co., Boston, Mass., October 22, 1918. 
Cleveland, Ohio. 
Gentlemen: 


We have yours of the 10th instant, saying you are about to publish a new Medusa 
Waterproofing catalog and asking for a testimonial, and beg to say the best testimonial 
Wwe can give you is an order. We are enclosing an order for 12,000 lbs., to be shipped 
as soon as possible. Yours very truly, 


WALDO BROTHERS, INC. 
A 


The Sandusky Cement Co., Wheeling, W. Va., October 14, 1918. 

Cleveland, Ohio. 

Gentlemen: 

Nearly ten years ago we purchased from you our first order of Medusa Water- 
proofing. Since that time we have sold large quantities of this material for various 
uses, and had competition from nearly all of the other waterproofings manufactured, 
but to the present time, we have always succeeded in obtaining large orders for Medusa 
Waterproofing, many of these being repeat orders from architects who know that 
Medusa is satisfactory for all work where waterproofing can be used. 

We have never seriously considered handling any other brand. We have sold it 
for use extensively; for foundation walls in Wheeling’s flood district, for waterproofing 
concrete in swimming pools, for wells and cisterns, and lately for waterproofing 
sprinkler system storage tanks. 

It has always been satisfactory. Yours truly, 

F. P. JONES COMPANY, 
Geo. A. Bailey, Sec’y-Treas. 


The Sandusky Cement Co., Beatrice, Nebr., October 23, 1918. 
Cleveland, Ohio. 
Gentlemen: 


We have handled Medusa Waterproofing for several years past, and wish to say 
that we have never received any complaint whatsoever regarding the same. 

Consequently, all you claim for it must certainly be making good. We have sold 
several tons of it with a steady increase in tonnage every season, and we will continue 
to handle the same in the future, push it, and advertise it in our monthly price list, 
together with the help that you are giving us through your various advertising 
mediums. Respectfully yours, 


THE JOHN H. von STEEN CO., 
John H. von Steen, Pres. and Treas. 


MANUFACTURERS OF MEDUSA WATERPROOFING Page thirty-five 


Page thirty-six 


THE ACTION OF SALT AND BRINE 
ON CONCRETE 


In a paper in the Journal of The Frank- 
lin Institute, Prof. J. N. Creighton, Dept. 
of Chemistry, Swarthmore College, dis- 
cusses the action of salt water and brine 
on reinforced concrete, citing the experi- 
ences of the use of concrete in salt water, 
in buildings and other structures sub- 
jected to the action of brine and witn 
structures where salt water was used for 
the concrete mix. 

The paper reviews in considerable de- 
tail the chemical reactions involved, and 
draws the following conclusions: 


1. All concrete which is not water-— 


proofed in some way is more or less 
porous to water and brine. 

2. Brine readily softens the surface of 
concrete and, therefore, more easily pene- 
trates to the reinforcement, on which it 
exerts a disintegrating action that, owing 
to the attendant expansion, gradually 
weakens the concrete, causing it to crack 
and split, and in some cases to fall away 
from the reinforcement. 

3. The more porous the concrete, the 
more rapid the disintegration of the rein- 
forcement through the action of the 
brine. 

4. Reinforced concrete floors which 
come in contact with brine will gradually 
develop leaks. These will be followed by 
incrustations. of discolored salt on the 
under side, where, later, iron-stained 
hair cracks will develop running parallel 
to the reinforcements. As the deteriora- 
tion progresses, the cracks will widen 
and, owing to the great expansive force 
of the accumulating iron oxide, the con- 
crete will be gradualy pushed from the 
corroded reinforcements and ultimately 
fall.—Concrete. 


O—_-—— 


ACTION OF SALT WATER ON 
MEDUSA WATERPROOFING 


The action of salt water on concrete is 
primarily upon the cement and any water- 
proofing that effectively prevents the 
penetration of sea water into the con- 
crete will preserve the latter from any 
deleterious action. 

Medusa Waterproofing is equally re- 
sistant to sea and fresh water, and its 
composition insures the protection of con- 
crete from the penetration of water into 
the interior and reduces the action of sea 
water to zero, where it is thoroughly and 
properly incorporated with the concrete. 

Concrete properly waterproofed with 
Medusa Waterproofing is as impervious 


to the action of salt water as concrete 

can possibly be made, and many instances 

of its use under trying circumstances 

have proved its efficacy. 

0) 

MEDUSA WATERPROOFING DOES 
NOT CONTAIN SOAP 


The Bureau of Standards has issued a 
publication (Technologic Paper No. 70) 
entitled “Durability of Stucco and Plaster 
Construction,” in which it presents a re- 
port of the progress in an investigation 
of stucco and plaster undertaken by the 
Bureau five years ago. 

In this report “Medusa” Waterproofing 
is referred to as of the “calcium soap 
type” and as this expression is likely to 
give an entirely false impression, we 
believe the following statement quite op- 
portune: 

“Soap,” as ordinarily understood, is a 
compound of fatty acids (which are per- 
fectly neutral and non-acid substances) 
with potash or soda, and is freely soluble 
in water. Medusa Waterproofing is a 
compound of these fatty acids with lime. 
and is an entirely insoluble powder ab- 
solutely unaffected by water, and not 
“soapy” in any sense. Chemically it 
might be considered as belonging to the 
group of soaps, but is totally different in 
properties from materials understood 
from this.name. Medusa Waterproofing 
paste is of a gelatinous and soft nature 
and might be considered similar to soap 
in consistency. However, when brought 
into contact with cement, it at once 
changes to the same insoluble substance 
of which Medusa Waterproofing powder 
consists, 

Medusa Waterproofing is absolutely 
unaffected by boiling water and contains 
no soap in the ordinary sense of the term 
O 
INTEGRAL WATERPROOFING 


By a mail canvass of 10,000 architects 
and engineers, “Structural Conservation” 
secured more than 2,600 replies to queries 
relative to integral waterproofing. More 
than 94% favored integral waterproofing 
of concrete under hydrostatic pressure, 
and 92°, stated that their observation 
had shown that integral waterproofing is 
beneficial in filling the pores of concrete 
and preventing the absorption of mois- 
ture, whereas concrete not waterproofed 
is absorptive of moisture. 

) 

Medusa Waterproofing paste is recom- 
mended for wet poured concrete and 
Medusa Waterproofing powder for dry 
tamped work. 


, 


THE SANDUSKY CEMENT COMPANY, CLEVELAND, OHIO 


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MEDUSA Waterproofing is Considered a Staple Commodity 
What a large Chicago builders’ supply dealer has to say about it 


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WISCONSIN LIME & CEMENT CO. 


JOSEPH HOCK, PRESIDENT TELEPHONE FRANKLIN 1371 
ADOLPH LOEFFLER, V. Pres & TREAS. PRIVATE SWITCHBOARD ALL DEPTS, 
H. S. BALHATCHET, SECRETARY 


CHAMBER OF COMMERCE BUILDING 
CHICAGO 


Sandusky Cement Co., Chicago, September 17, 1918. 
Cleveland, Ohio. 


Gentlemen: 


Replying to your inquiry as to our impression of Medusa Waterrroof- 
ing from our experience as selling agents in this territory, we would say 
that so far as pointing out any particular jobs worthy of srecial mention 
for advertising purposes, we are hardly in position to do this as Medusa 
Waterproofing long since has been considered by us as such a staple com- 
modity and is sold and delivered by us in the same manner a3 portland 
cement, lime or other merchandise that goes to the contractors without 
drawing any special attention or considered of importance enough to be 
worthy of record or comment. 


We have many customers who seldom order portland cement without 
including in their order a bag or two of Medusa Waterproofing which is 
sold and delivered to them without question as to what kind of a building 
it goes into or for what purpose it is used. The contractors are as familiar 


with the use of Medusa Waterproofing as they are with the portland cement 
itself. 


In this connection we will say that our stock is running low and we 
request that you hasten shipment of the order placed with your Chicago 
representative a few days ago and oblige. 


Trusting that the above explanation of our opinion of Medusa Water- 
proofing will answer your purpose as well as though we gave you a list of 
jobs on which it was used and forwarded you numerous photographs of 
different buildings into which it has gone, we are, 


Very truly yours, 
WISCONSIN LIME & CEMENT CO. 
CFD-A | (Signed) C. F. Dynes, Sales Manager. 


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